public File::setSize($size) Sets the size

file_validate_image_resolution(FileInterface $file, $maximum_dimensions = 0, $minimum_dimensions = 0) Verifies

The stream wrapper manager. Type:

An array of arrays of registered guessers keyed by priority. Type:

public FileSystem::mkdir($uri, $mode = NULL, $recursive = FALSE, $context = NULL)

Default theme implementation to display a file form widget. Available variables: element:

file_field_views_data(FieldStorageConfigInterface $field_storage) Implements

protected FileAccessControlHandler::checkFieldAccess($operation

public static ManagedFile::processManagedFile(&$element, FormStateInterface

public static ManagedFile::preRenderManagedFile($element)